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feat: reframe as hosted Walder with multi-tenancy and community hub

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Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
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Christopher Mühl 2026-02-17 23:09:18 +01:00
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@ -1,27 +1,27 @@
# Solid Gate # Solid Gate
> Your Solid pod, with an API surface you define. > Hosted, multi-tenant [Walder](https://github.com/KNowledgeOnWebScale/walder) with a community template hub.
## What is this? ## What is this?
[Solid](https://solidproject.org/) is great for storing your personal RDF data in a pod you control. The problem: every app that wants to read your data needs to speak LDP, understand your specific vocabularies, and parse RDF. Almost none do. [Solid](https://solidproject.org/) is great for storing your personal RDF data in a pod you control. The problem: every app that wants to read your data needs to speak LDP, understand your specific vocabularies, and parse RDF. Almost none do.
Solid Gate is the adapter layer. Define a mapping template once, and your pod data is exposed as whatever format a consuming app actually wants — RSS, iCal, JSON, a REST endpoint, anything. Solid Gate is the hosted service layer on top of [Walder](https://github.com/KNowledgeOnWebScale/walder) — a tool that builds websites and APIs on top of decentralized knowledge graphs. Walder proved the concept. Solid Gate productizes it: multi-tenancy, Solid OIDC auth per user, cache invalidation via Solid Notifications, and a community hub of one-click templates for common transformations.
Think of it as [SPARQL-Anything](https://sparql-anything.cc/) in reverse: SPARQL-Anything lets you query arbitrary formats *as if* they were RDF. Solid Gate lets you serve your RDF *as if* it were any arbitrary format. Think of it as [SPARQL-Anything](https://sparql-anything.cc/) in reverse: SPARQL-Anything lets you query arbitrary formats *as if* they were RDF. Solid Gate lets you serve your RDF *as if* it were any arbitrary format.
## How it works ## How it works
1. **Authenticate** — grant Solid Gate read access to your pod via Solid OIDC 1. **Authenticate** — grant Solid Gate read access to your pod via Solid OIDC
2. **Deploy a template** — pick one from the library or write your own 2. **Deploy a template** — pick one from the community library or bring your own
3. **Get a stable URL** — your transformed data is cached and served at a permanent endpoint 3. **Get a stable URL** — your transformed data is cached and served at a permanent endpoint
4. **Stays fresh** — [Solid Notifications](https://solid.github.io/notifications/protocol) trigger recomputation when your pod data changes; stale cache is served in between 4. **Stays fresh** — [Solid Notifications](https://solid.github.io/notifications/protocol) trigger recomputation when your pod data changes; stale cache served in between
``` ```
Your Solid Pod → Solid Gate → stable URL (RSS / iCal / JSON / ...) Your Solid Pod → Solid Gate (Walder) → stable URL (RSS / iCal / JSON / ...)
↑ ↑
mapping template community template
(yours or community) (or bring your own)
``` ```
## Example use cases ## Example use cases
@ -31,6 +31,10 @@ Your Solid Pod → Solid Gate → stable URL (RSS / iCal / JSON / ...)
- **Contacts → vCard** — bridge your pod contacts to legacy address book apps - **Contacts → vCard** — bridge your pod contacts to legacy address book apps
- **Any RDF → REST API** — give legacy apps a familiar interface to your pod data - **Any RDF → REST API** — give legacy apps a familiar interface to your pod data
## The community hub
The template library is the core value. Common transformations are one-click deploys. Power users publish their own. Think Vercel for Walder configs.
## Deployment ## Deployment
### Self-hosted ### Self-hosted
@ -45,7 +49,8 @@ Coming soon. Authenticate with your Solid identity, deploy a template, done.
Early design phase. Part of the [Aleph Garden](https://aph.gdn) personal semantic web project. Early design phase. Part of the [Aleph Garden](https://aph.gdn) personal semantic web project.
## Related ## Prior art
- [Solid Project](https://solidproject.org/) - [Walder](https://github.com/KNowledgeOnWebScale/walder) — the engine underneath; research prototype from IDLab/KNoWS (Ghent). Proved the concept, never productized.
- [SPARQL-Anything](https://sparql-anything.cc/) — the spiritual mirror of this project - [SPARQL-Anything](https://sparql-anything.cc/) — the spiritual mirror of this project
- [ActivityPods](https://activitypods.org/) — ActivityPub + Solid combined; adjacent but different problem